molecules Article Synthesis, Antiproliferative, and Antioxidant Evaluation of 2-Pentylquinazolin-4(3H)-one(thione) Derivatives with DFT Study Amira A. El-Sayed 1, Mahmoud F. Ismail 1 , Abd El-Galil E. Amr 2,3,* and Ahmed M. Naglah 2,4 1 Department of Chemistry, Faculty of Science, Ain Shams University, 11566 Abbassia, Cairo 11566, Egypt;
[email protected] (A.A.E.-S.);
[email protected] (M.F.I.) 2 Pharmaceutical Chemistry Department, Drug Exploration & Development Chair (DEDC), College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
[email protected] 3 Applied Organic Chemistry Department, National Research Center, Cairo, Dokki 12622, Egypt 4 Peptide Chemistry Department, Chemical Industries Research Division, National Research Centre, Dokki, Cairo 12622, Egypt * Correspondence:
[email protected]; Tel.: +966-543074312 Academic Editor: Qiao-Hong Chen Received: 5 October 2019; Accepted: 20 October 2019; Published: 21 October 2019 Abstract: The current study was chiefly designed to examine the antiproliferative and antioxidant activities of some novel quinazolinone(thione) derivatives 6–14. The present work focused on two main points; firstly, comparing between quinazolinone and quinazolinthione derivatives. Whereas, antiproliferative (against two cell lines namely, HepG2 and MCF-7) and antioxidant (by two methods; ABTS and DPPH) activities of the investigated compounds, the best quinazolinthione derivatives were 6 and 14, which exhibited excellent potencies comparable to quinazolinone derivatives 5 and 9, respectively. Secondly, we compared the activity of four series of Schiff bases which included the quinazolinone moiety (11a–d). In addition, the antiproliferative and antioxidant activities of the compounds with various aryl aldehyde hydrazone derivatives (11a–d) analogs were studied.